Walmart Front-end Cashier interview questions

My grandfather, who works at Walmart told me to call the Personnel office to hopefully obtain an interview due to the massive hiring they're doing to get ready for the holiday. I called them right after school on a Friday (10/21) and got an interview scheduled for the following Tuesday (10/25) at 4pm. There was someone already waiting before I arrived therefore I waited a couple of minutes and was called back by the Assistant Manager. Surprisingly I was not asked any questions but briefed on the job and my hours available to work. She then took me to the Personnel Manager and had me complete some paperwork and accept the job offer. They called me the following Wednesday (11/02) to do some pre-orientation paperwork. They had me sign a document stating that it was my hiring date. After I completed some paperwork, they told me orientation would start the following Wednesday (11/09) due to my availability (and being a minor).